US20040015137A1 - Fluid material dispensing syringe - Google Patents

Fluid material dispensing syringe Download PDF

Info

Publication number
US20040015137A1
US20040015137A1 US10/618,899 US61889903A US2004015137A1 US 20040015137 A1 US20040015137 A1 US 20040015137A1 US 61889903 A US61889903 A US 61889903A US 2004015137 A1 US2004015137 A1 US 2004015137A1
Authority
US
United States
Prior art keywords
carpule
plunger seal
syringe
unit
drive shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/618,899
Inventor
Ingrid Hohlfelder
Chester Zdanowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dentsply Research and Development Corp
Original Assignee
Dentsply Research and Development Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US20503700P priority Critical
Priority to US86138001A priority
Priority to US10/024,881 priority patent/US20020055720A1/en
Application filed by Dentsply Research and Development Corp filed Critical Dentsply Research and Development Corp
Priority to US10/618,899 priority patent/US20040015137A1/en
Publication of US20040015137A1 publication Critical patent/US20040015137A1/en
Application status is Abandoned legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14546Front-loading type injectors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/20Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00Special media to be introduced, removed or treated
    • A61M2202/02Gases
    • A61M2202/0241Anaesthetics; Analgesics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14566Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir for receiving a piston rod of the pump
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/315Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31515Connection of piston with piston rod

Abstract

A dental syringe (10) has a needle (11) affixed to a carpule holder (12), which carpule holder (12) is affixed to a power drive unit (13). A harpoon (20) is provided to affix the drive unit to the carpule plunger (32). The harpoon (20) is made of stainless steel or other hard, corrosion resistant, sterilizable, material. Harpoon 20 has a unique barb geometry and hardened, knife-like, edges (21). The syringe (10) may operate to divide the delivery of anesthesia into two phases. According to the method, during the first about 10 seconds of the injection, anesthetic is delivered at an extremely slow rate to maximize patient comfort. The injection rate then automatically increases to the preprogrammed rate associated with the injection type selected.

Description

    RELATED APPLICATION
  • This application is a Continuation of U.S. Ser. No. 09/861,380 filed May 18, 2001, which claims the benefit of U.S. Provisional Application Serial No. 60/205,037 filed on May 18, 2000.[0001]
  • TECHNICAL FILED
  • The present invention is directed toward a syringe for dispensing a fluid material such as a dental anesthesia. [0002]
  • BACKGROUND OF THE INVENTION
  • Dental anesthesia is known to be delivered from pre-filled, single use, carpules with a glass barrel and rubber-like plunger (by “rubber-like” it means actual rubber or some other material having physical properties similar to rubber). There are a variety of hand-operated dental syringes which hold these anesthesia carpules and drive the rubber plunger forward. In most clinical procedures, the dentist performs an aspiration to determine if a blood vessel has been entered, before injecting the anesthetic. (Injecting the anesthetic in the bloodstream is potentially hazardous.) Aspiration is accomplished by briefly retracting the carpule plunger to create a slight vacuum. There are a variety of means to retract the plunger, including the following: various mechanical hooks, harpoons, barbs, and corkscrews which embed in and grip the carpule plunger; a gripping member on the tip of the syringe plunger penetrates and grips the carpule's elastomeric seal. The gripping members are variously hooks, pointed needles, barbed needles, or corkscrews. This method is common in thumb-actuated syringes. One shortcoming of this method is that the carpule must be rapidly jammed onto the gripping member in order to embed it into the carpule seal without excess expulsion of anesthetic fluid. Another drawback is that various designs of gripping members either pull out of the carpule seal prematurely, or are not easily removed after injection is completed. [0003]
  • Sealed syringe plungers which create a vacuum behind the carpule plunger are known. A secondary seal on the syringe plunger creates a slight vacuum behind the carpule seal so the carpule seal retracts when the syringe plunger is pulled back. This method is used in a product known as The Wand computer controlled syringe. A drawback of this method is that the carpule seal is not consistently retracted. Another drawback is that the syringe plunger seal must be periodically cleaned, lubricated, or replaced. [0004]
  • Methods which create a vacuum in the carpule by distorting its needle septum are known. In this method, the syringe induces relative motion between the carpule and it's seal, creating the slight vacuum. In a variation of this method, the syringe induces a deflection in the carpule's septum, creating a slight vacuum in the carpule. [0005]
  • It has been found in laboratory tests, that none of these method work reliably, failing in one or more of the following ways: did not penetrate certain brands of carpules with high durometer rubber plungers; requiring excessive user effort or skill; pulling out of the carpule plunger and therefore failing to create an aspiration vacuum; and/or, becoming loaded with the silicone lubricant used on these carpule plungers, and then failing to grip the plunger. [0006]
  • A harpoon design which solves these problems is desirable. [0007]
  • Further, previous dental anesthesia syringes have had several problems in their operation: only a single injection rate for all procedures; only crude feedback on the amount of anesthetic injected; no feedback for the elapsed time of injection; does not allow the practitioner to speed-up the injection rate. [0008]
  • One device, described in U.S. Pat. No. 5,690,618, addressed some of these issues, but exhibited other problems: very complex to use, requiring the clinician to program various rates and times for each injection; and, no feedback for the elapsed time or cumulative volume of injection. [0009]
  • DISCLOSURE OF THE INVENTION
  • It is therefore, an object of the present invention to provide syringe useful in dispensing fluid materials. [0010]
  • It is another object of the invention to provide such a syringe particularly suited for the dispensing of dental materials. [0011]
  • It is a further object of the invention to provide such a syringe that is computer controlled. [0012]
  • It is yet another object of the invention to provide such a syringe with an improved harpoon connector between a drive shaft and a carpule seal. [0013]
  • These and other objects of the invention that will become apparent from the following discussion are carried out by the invention as hereinafter described and claimed. [0014]
  • In general, an electrically controlled syringe for dispensing a fluid material, comprises a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit; said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle; a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal; an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit; said harpoon being fabricated from a hard, corrosion resistant, sterilizable material; a stripper ring positioned within said syringe unit and proximate to said carpule plunger seal when said carpule holder is in place upon said syringe unit, such that when said carpule plunger seal is moved from the dispensing to the retracted position, said stripper ring physically engages said carpule plunger seal, preventing further retracting movement of said carpule plunger seal and hence, allowing extraction of said harpoon from said carpule plunger seal; said stripper ring having an inside diameter larger than said harpoon such that said harpoon is receivable therein; and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle. [0015]
  • In another embodiment of the invention, an electrically controlled syringe for dispensing a fluid material comprises a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit; said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle; a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal; an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit; said harpoon being fabricated from a hard, corrosion resistant, sterilizable material; and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle. [0016]
  • A computer controlled syringe for dispensing a fluid material also comprises a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit; said power drive unit including a logic control circuit; said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle; a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal; an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said logic control circuit of said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit; said harpoon being fabricated from a hard, corrosion resistant, sterilizable material; and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle. [0017]
  • A programmable, electrically controlled syringe for dispensing a fluid material according to the invention comprises a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit; said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle; a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal; an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a pre-selected longitudinal direction at a pre-selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit; said harpoon being fabricated from a hard, corrosion resistant, sterilizable material; and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle. [0018]
  • Also according to the invention, an electrically controlled syringe for dispensing a fluid material comprises a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit; said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule is caused to flow through said dispensing needle; a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal; an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit; said harpoon being fabricated from a hard, corrosion resistant, sterilizable material; said power drive unit having image displays to provide digital or analog indicia of system parameters selected from the group consisting of elapsed time of dispensing, rate of dispensing, volume of material dispensed, dispensing or aspirating mode, or combinations thereof. [0019]
  • Still another embodiment of the invention comprises an electrically controlled syringe for dispensing a fluid material having a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit; said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and threadably and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle; a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal; an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit; said harpoon being fabricated from a hard, corrosion resistant, sterilizable material; a stripper ring positioned within said syringe unit and proximate to said carpule plunger seal when said carpule holder is in place upon said syringe unit, such that when said carpule plunger seal is moved from the dispensing to the retracted position, said stripper ring physically engages said carpule plunger seal, preventing further retracting movement of said carpule plunger seal and hence, allowing extraction of said harpoon from said carpule plunger seal; said stripper ring having an inside diameter larger than said harpoon such that said harpoon is receivable therein; and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle. [0020]
  • BRIEF DISCUSSION OF THE DRAWINGS
  • FIG. 1 is a perspective view of the harpoon portion of a dental syringe, according to the invention. [0021]
  • FIG. 2 is a view of the opposite side of the harpoon as shown in FIG. 1. [0022]
  • FIG. 3 is a side elevational view of the harpoon shown in FIG. 1. [0023]
  • FIG. 4 is a perspective view of a dental syringe according to the present invention. [0024]
  • FIG. 5 is a lengthwise cross-sectional view of the syringe of FIG. 4. [0025]
  • FIG. 6 is another cross-sectional view as in FIG. 5. [0026]
  • FIG. 7 is a closeup view of one portion of the cross-section of FIG. 5, showing the harpoon of FIGS. [0027] 1-3 in place in the syringe.
  • FIG. 8 is a partially schematic representation of a control panel for the computer-controlled syringe according to the present invention. [0028]
  • FIG. 9 is an exploded, perspective view of a portion of the syringe of FIG. 4.[0029]
  • PREFERRED EMBODIMENTS FOR CARRYING OUT THE INVENTION
  • An exemplary computer controlled syringe, embodying the concepts of the present invention, is generally shown by the number [0030] 10 on the attached drawings. Syringe 10 has a dispensing tip 11 fluidly affixed to a carpule holder 12, which carpule holder 12 is releasably affixed or connected to a syringe power unit 13.
  • Carpule holder [0031] 12 is initially (that is, prior to dispensing) loaded with the material to be dispensed (not shown) by any conventional means, such as a conventional carpule or the like. Any carpule capable of being dispensed by the action of a physically engaging plunger (to be discussed below) is within the scope of the invention. Carpule holder 12 may be affixed to syringe 10 by any conventional means, including for example, bayonet connector 50 at one end of carpule holder 12. At it other end, carpule holder 12 is preferably provided with means to affix or removably affix the dispensing tip 11. In the case of the use of syringe 10 to dispense a dental anesthetic or the like, dispensing tip 11 is a hypodermic needle, which is affixed by conventional means, such as friction, screw threads or the like, to carpule holder 12. Preferably, dispensing tip 11 is fluidly affixed to carpule holder 12, so as to fluidly communicate with the interior thereof, or whatever carpule or the like is employed.
  • Carpule holder [0032] 12 is provided with a carpule plunger seal 32, which is preferably rubber-like in manufacture, for reasons to be discussed. Carpule plunger seal 32 is preferably laterally displaceable within carpule holder 12 to thereby provide for dispensing of material from carpule holder 12 or aspiration of external material through dispensing tip 11. Thus, preferably, carpule plunger seal 32 is selectively, laterally displaceable between a dispensing and a retracting movement. When carpule plunger seal 32 is caused to move toward affixed dispensing tip 11, material in carpule holder 12 is caused to flow toward dispensing tip 11, and when expressed therethrough, is said to have dispensed the material.
  • Syringe power unit [0033] 13 of syringe 10 is preferably provided with an electric drive motor 60, which is employed to laterally displace a drive shaft 61. Motor 60 may be of any conventional design, but is preferably an electrically powered stepper motor with integral internal rotating nut that drives a lead-screw to provide open-loop linear motion. Such motors are commercially available for example, from Haydon Switch and Signal, as well as others. Further, motor 60 should be capable of being controlled as to start and stop of motion, as well as amount of and speed of the lateral displacement of the drive shaft 61, by signals received from an operator, and more preferably received via conduit 41 from power drive unit 40. Motor 60 may also be powered by electricity received through conduit 41 or by any other conventional means, such as batteries located in syringe 10 (not shown). Drive shaft 61 is operatively and releasably connected to carpule plunger seal 32, by any means but preferably by the means described herein.
  • Drive shaft [0034] 61 preferably has an end proximal to and an end distal to carpule holder 12 when carpule holder 12 is connected to syringe 10. In order to effect the connection between drive shaft 61 and carpule plunger seal 32, it is preferred to employ an inventive harpoon 20 that will be hereinafter described.
  • Syringe [0035] 10 is operatively and electrically connected to a power drive or base unit 40 (FIG. 8) via a connecting conduit 41 (FIGS. 4-6). Power drive unit 40 via conduit 41 provides electrical signal to syringe 10 to control the operation thereof, and preferably includes a logic control circuit (not shown) of any suitable sort to provide such selected or predetermined control signals. For example, power drive unit 40 may be used to control the flow rate, flow duration, start, stop, elapsed time, volume of dispensed material, direction of material flow, connection to a carpule (known as loading) or disconnecting therefrom (unloading) or the like. The mechanism of such controls will be described below in greater detail. Control signals from power drive unit 40 may be digital or analog, and may be displayed by any suitable means, including using digital readouts 42 (rate of dispensing), 43, (volume of material dispensed), 44 (time of dispensing), or any other desired parameter without limitation. Control mechanisms include buttons 45 for controlling dispensing conditions or parameters, or the like. Power drive unit 40 may be preset for automatic control of dispensing parameters, or such parameters may be individually controlled. As an example of a preset parameter, a button 45 may provide for a doubling of the rate of dispensing of material. By using a logic control circuit or computer, the number of, type of, rate of or the li9ke of all syringe parameters can be preselected, and hence, the device is programmable.
  • Conduit [0036] 41 may also be used to provide electrical power to syringe 10 for purposes to be more fully explained in the following discussion. If required, multiple conduits (not shown) similar to conduit 41 or of some other conventional design, may be employed.
  • Syringe [0037] 10 will be exemplified herein with respect to the dispensing of a dental anesthetic material, it being understood that the invention has application to many materials including the dispensing of medical, industrial or other dental materials.
  • The general operation of syringe [0038] 10 in delivering anesthetics to a patient, is well known in the art, except as otherwise described, noted and claimed. For example, a power driven syringe is shown in U.S. Pat. No. 5,690,618, which is hereby incorporated by reference for such disclosure.
  • As stated above, an inventive harpoon [0039] 20 is provided according to the present invention. Harpoon 20 would typically and preferably be made of stainless steel or other hard, corrosion resistant, sterilizable, material. Harpoon 20 has a unique barb 21 geometry and hardened, knife-like, edges 22 located along its length, with the following advantages: the thin configuration, sharp point, and hard knife edges 22 of the harpoon uniquely allow consistent penetration into all types of elastomer carpule seals, such as carpule plunger seal end 23, even those of hard rubber, with lower force than other gripper types. Thus, it does not require the operator to jam the carpule into the syringe. The swept-back barbs 21 allow the harpoon to consistently remain in the carpule plunger, up to five times more effectively than other gripper types. Thus, aspiration is consistent. This design is easily fabricated at low cost, and has a long life (number of insertions into rubber). The design reduces or eliminates the drawbacks of the vacuum type.
  • Because harpoon [0040] 20 is affixed to carpule plunger seal 32 and to drive shaft 61, lateral displacement of drive shaft 61 also causes lateral displacement of harpoon 20 and hence, also of affixed carpule plunger seal 32.
  • Another inventive feature of the invention is the incorporation of a stripper ring [0041] 30 in the syringe device 10. This ring has an inside diameter (ID) slightly larger than the harpoon 20 but smaller than a standard carpule plunger seal 23. Thus, when the syringe plunger seal 32 is fully retracted, the harpoon 20 is pulled out of the carpule seal 23 while the carpule seal 23 remains within the carpule holder 12, by physical contact between stripper ring 30 and carpule plunger seal 32, thereby preventing further movement of carpule plunger seal 32. Continued retracting movement of drive shaft 61 and affixed harpoon 20 past the point physical contact between stripper ring 30 and carpule plunger seal 32 will cause harpoon 20 to be physically disengaged from carpule plunger seal 32. By being a ring of proper dimension, harpoon 20 and drive shaft 61 maybe received within stripper ring 30.
  • Harpoon [0042] 20 has the following advantages: it readily penetrates the carpule plunger seal 32 with only moderate force, even plungers made of high durometer rubber; it does not pull out of the carpule plunger seal 32, even in repeated aspirations; nonetheless, it can be readily stripped from the carpule plunger seal 32 with proper syringe design, using stripper ring 30; its shape is suited to low-cost manufacturing.
  • As discussed above, it is preferred to control dispensing parameters of syringe [0043] 10 by control signals or commands received from power drive unit 40. It is also an advantage of the present invention, that an operator can control some or all such parameters by use of a secondary injection control mechanism 70 (FIG. 11) located proximate to syringe 10 and distal to power drive unit 41. Secondary injection control mechanism 70 is operatively connected to said drive motor 60, such as by connector 71, to control the longitudinal displacement direction or rate of drive shaft 61, by command signals that start, stop, adjust speed, torque, or the like of motor 60, and hence, the injection rate of the material dispensed from dispensing tip 11. Secondary injection control mechanism 70 may be of any design such as a switchboard 72, button 73 design as depicted in the drawings. For anesthetic purposes, secondary control mechanism 70 may be covered with for example, cap 74.
  • The syringe [0044] 10 according to the present invention also divides the delivery of anesthesia into two phases. According to the method of the present invention, during the first 10 seconds of the injection, anesthetic is delivered at an extremely slow rate to maximize patient comfort. The injection rate then automatically increases to the preprogrammed rate associated with the injection type you have selected. The following steps refer to the control panel of FIG. 8.
  • A. Select your injection by depressing the appropriate button under Injection Technique. The injection rate will be displayed in the box title Rate cc/sec. [0045]
  • B. Once the injection technique is selected, you are ready to proceed. [0046]
  • C. Aspiration is achieved by pressing and releasing the middle button on the handpiece, once. [0047]
  • D. After aspiration, press an release the front start/stop button on the handpiece to initiate the injection. [0048]
  • E. At any time during the injection you may stop by simply pressing the front start/stop button on the handpiece to stop the program. [0049]
  • F. You can double the rate of injection at any time by pressing the back button on the handpiece or the double rate button on the base unit. To turn this feature off, simply push the Double button again on either the handpiece or the control box. [0050]
  • G. When you are through with the injection, press and release the front start/stop button once to stop the program. [0051]
  • H. If you inject into a new site, change your injection technique setting if necessary, follow steps A-D and the program will automatically start over. [0052]
  • I. When finished, re-sheath the needle and set the handpiece in the holder.”[0053]
  • Other physical embodiments utilizing the same simplified control scheme. For example, a unitary battery operated handpiece. [0054]
  • It will be appreciated that the syringe according to the present invention is simple to use. Control choices are directly related to known clinical practice rather than arcane rates and times. It provides clinically useful display information. [0055]
  • As shown in FIG. 7, carpule holder [0056] 12 is provided with a discharge end 80 and a connector end 81. Connector end 81 is used to removably affix carpule holder 12 to syringe 10. Connector end 81 is provided with wedge lugs 82, which physically engage circumferential lips 83 carried by syringe 10.
  • It should therefore be apparent that the dental syringe as described herein carries out the object of the invention and otherwise provides an advance and contribution to the art. The invention has been exemplified with respect to drawings and description, without an attempt to provide a depiction or description of every embodiment of the event of device or method. Those skilled in the art will readily understand that various sizes, components and method steps can be employed and still fall within the scope of the present invention. [0057]

Claims (6)

What is claimed is:
1. An electrically controlled syringe for dispensing a fluid material, comprising:
a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit;
said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle;
a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal;
an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit;
said harpoon being fabricated from a hard, corrosion resistant, sterilizable material;
a stripper ring positioned within said syringe unit and proximate to said carpule plunger seal when said carpule holder is in place upon said syringe unit, such that when said carpule plunger seal is moved from the dispensing to the retracted position, said stripper ring physically engages said carpule plunger seal, preventing further retracting movement of said carpule plunger seal and hence, allowing extraction of said harpoon from said carpule plunger seal; said stripper ring having an inside diameter larger than said harpoon such that said harpoon is receivable therein;
and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle.
2. An electrically controlled syringe for dispensing a fluid material, comprising:
a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit;
said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle;
a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal;
an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit;
said harpoon being fabricated from a hard, corrosion resistant, sterilizable material;
and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle.
3. A computer controlled syringe for dispensing a fluid material, comprising:
a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit; said power drive unit including a logic control circuit;
said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle;
a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal;
an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said logic control circuit of said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit;
said harpoon being fabricated from a hard, corrosion resistant, sterilizable material;
and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle.
4. A programmable, electrically controlled syringe for dispensing a fluid material, comprising:
a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit;
said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle;
a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal;
an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a pre-selected longitudinal direction at a pre-selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit;
said harpoon being fabricated from a hard, corrosion resistant, sterilizable material;
and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle.
5. An electrically controlled syringe for dispensing a fluid material, comprising:
a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit;
said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle;
a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges positioned along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal;
an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit;
said harpoon being fabricated from a hard, corrosion resistant, sterilizable material;
said power drive unit having image displays to provide digital or analog indicia of system parameters selected from the group consisting of elapsed time of dispensing, rate of dispensing, volume of material dispensed, dispensing or aspirating mode, or combinations thereof.
6. An electrically controlled syringe for dispensing a fluid material, comprising:
a power drive unit electrically and operatively connected to a syringe unit via at least one connecting conduit;
said syringe unit having a releasably connected carpule holder, said carpule holder being initially loaded with the material to be dispensed, said carpule holder being releasably connected at one end to said syringe unit and threadably and fluidly connected at its other end to a dispensing needle, said carpule holder having a rubber-like plunger seal laterally displaceable therein between a dispensing and a retracted position, such that when said carpule plunger seal is moved toward a dispensing position, the material in said carpule holder is caused to flow through said dispensing needle;
a longitudinally movable, powered drive shaft in said syringe unit and releasably connected to said carpule plunger seal, said drive shaft having an end proximal to and an end distal to said carpule plunger seal when said carpule holder is in place on said syringe unit; wherein said drive shaft is provided with a harpoon at said proximal end; said harpoon having a swept-back, barbed point and knife edges along its length, such that said barbed point is insertable into said rubber-like carpule plunger seal, and is selectively prevented from being removed by physical contact between said barbed point and said carpule plunger seal;
an electric drive motor operatively affixed to said drive shaft, and operatively connected to said power drive unit, such that the rate of and direction of the longitudinal displacement of said drive shaft is selectable by electrical, operative signals received from said power drive unit to cause said drive motor to displace said drive shaft in a selected longitudinal direction at a selected rate, thereby laterally displacing said operatively connected harpoon and carpule plunger seal, said drive motor being operable with electric power received from said power drive unit;
said harpoon being fabricated from a hard, corrosion resistant, sterilizable material;
a stripper ring positioned within said syringe unit and proximate to said carpule plunger seal when said carpule holder is in place upon said syringe unit, such that when said carpule plunger seal is moved from the dispensing to the retracted position, said stripper ring physically engages said carpule plunger seal, preventing further retracting movement of said carpule plunger seal and hence, allowing extraction of said harpoon from said carpule plunger seal; said stripper ring having an inside diameter larger than said harpoon such that said harpoon is receivable therein;
and at least one secondary injection control mechanism located proximate to said syringe unit and distal to said power drive unit, wherein said secondary injection control mechanism is operatively connected to said syringe drive motor to control the longitudinal displacement direction or rate of said drive shaft, and hence, the injection rate of the material dispensed from said needle.
US10/618,899 2000-05-18 2003-07-14 Fluid material dispensing syringe Abandoned US20040015137A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US20503700P true 2000-05-18 2000-05-18
US86138001A true 2001-05-18 2001-05-18
US10/024,881 US20020055720A1 (en) 2000-05-18 2001-12-19 Fluid material dispensing syringe
US10/618,899 US20040015137A1 (en) 2000-05-18 2003-07-14 Fluid material dispensing syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/618,899 US20040015137A1 (en) 2000-05-18 2003-07-14 Fluid material dispensing syringe

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US86138001A Continuation 2001-05-18 2001-05-18
US10/024,881 Division US20020055720A1 (en) 2000-05-18 2001-12-19 Fluid material dispensing syringe

Publications (1)

Publication Number Publication Date
US20040015137A1 true US20040015137A1 (en) 2004-01-22

Family

ID=22760527

Family Applications (3)

Application Number Title Priority Date Filing Date
US10/024,881 Abandoned US20020055720A1 (en) 2000-05-18 2001-12-19 Fluid material dispensing syringe
US10/618,899 Abandoned US20040015137A1 (en) 2000-05-18 2003-07-14 Fluid material dispensing syringe
US11/015,367 Abandoned US20050101913A1 (en) 2000-05-18 2004-12-17 Fluid material dispensing syringe

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10/024,881 Abandoned US20020055720A1 (en) 2000-05-18 2001-12-19 Fluid material dispensing syringe

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/015,367 Abandoned US20050101913A1 (en) 2000-05-18 2004-12-17 Fluid material dispensing syringe

Country Status (7)

Country Link
US (3) US20020055720A1 (en)
JP (1) JP2003533287A (en)
AU (2) AU2001261790B2 (en)
BR (1) BR0110933B1 (en)
CA (1) CA2409711A1 (en)
MX (1) MXPA02011395A (en)
WO (1) WO2001087383A2 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050119623A1 (en) * 2003-11-24 2005-06-02 Olivier Pessin Needle protection device intended for a carpule and injection device comprising a carpule and this protection device
US20070173760A1 (en) * 2005-09-27 2007-07-26 Fedenia Adam S Medical suction and irrigation device handpiece
US20070179441A1 (en) * 2003-10-22 2007-08-02 Stephane Chevallier Protected injection syringe device
WO2007136794A2 (en) * 2006-05-19 2007-11-29 Mpsc, Inc. Piercing tip
US20080021409A1 (en) * 2003-03-25 2008-01-24 Sedat Device for protection of the needle for a syringe and injection device comprising a syringe and said protection device
US20080045925A1 (en) * 2006-06-19 2008-02-21 Stepovich Matthew J Drug delivery system
US20080086108A1 (en) * 2006-10-05 2008-04-10 Falkel Michael I Method and apparatus for delivering a drug
US20080097325A1 (en) * 2005-02-24 2008-04-24 Showa Yakuhin Kako Co., Ltd. Method and apparatus for controlling the injection rate of a drug solution in a cartridge type motor-driven dental injection syringe
US20100217205A1 (en) * 2007-10-23 2010-08-26 Tech Group Europe Ltd. Syringe device comprising a syringe body and a bearing sleeve
US7817498B1 (en) * 2007-05-11 2010-10-19 Michael R. Schramm Medical apparatus having elapsed time indicated and method of use
KR101079155B1 (en) 2009-02-24 2011-11-02 김명섭 Automatic Fine Needle Cell Aspirator
US9022990B2 (en) 2011-04-04 2015-05-05 Tech Group Europe Limited Needle safety shield
US9050416B2 (en) 2012-11-01 2015-06-09 Tech Group Europe Limited Needle Safety device with floating ring

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4509475B2 (en) * 2000-10-10 2010-07-21 デンツプライ インターナショナル インコーポレーテッド Syringe for dispensing a fluid substance
US6802824B2 (en) 2002-06-17 2004-10-12 Scimed Life Systems, Inc. Catheter device and method for delivering a dose internally during minimally-invasive surgery
US20070060887A1 (en) * 2005-08-22 2007-03-15 Marsh David A Ophthalmic injector
US7674243B2 (en) * 2006-05-17 2010-03-09 Alcon Inc. Ophthalmic injection device using piezoelectric array
US9022970B2 (en) * 2006-10-16 2015-05-05 Alcon Research, Ltd. Ophthalmic injection device including dosage control device
US7871399B2 (en) * 2006-05-17 2011-01-18 Alcon Research, Ltd. Disposable ophthalmic injection device
US20070270750A1 (en) * 2006-05-17 2007-11-22 Alcon, Inc. Drug delivery device
US7862540B2 (en) * 2006-05-17 2011-01-04 Alcon Research, Ltd. Ophthalmic injection device using shape memory alloy
US7740619B2 (en) 2007-08-01 2010-06-22 Alcon Research, Ltd. Spring driven ophthalmic injection device with safety actuator lockout feature
US7811252B2 (en) * 2006-05-17 2010-10-12 Alcon Research, Ltd. Dosage control device
US7887521B2 (en) * 2006-05-17 2011-02-15 Alcon Research, Ltd. Ophthalmic injection system
US20070268340A1 (en) * 2006-05-17 2007-11-22 Bruno Dacquay Ophthalmic Injection System and Method Using Piezoelectric Array
US8554830B2 (en) * 2006-09-06 2013-10-08 Devicescape Software, Inc. Systems and methods for wireless network selection
US20080125712A1 (en) * 2006-09-26 2008-05-29 Alcon Manufacturing, Ltd. Ophthalmic injection system
US20080097390A1 (en) * 2006-09-27 2008-04-24 Alcon Manufacturing, Ltd. Spring actuated delivery system
US20080281292A1 (en) * 2006-10-16 2008-11-13 Hickingbotham Dyson W Retractable Injection Port
US20080234625A1 (en) * 2006-10-16 2008-09-25 Bruno Dacquay Fuse Assembly For Single Use Medical Device
US20100106083A1 (en) * 2006-10-16 2010-04-29 Alcon Research, Ltd. Method of Operating Ophthalmic Hand Piece with Disposable End
WO2008105951A2 (en) * 2006-10-16 2008-09-04 Alcon Research, Ltd. Universal rechargeable limited reuse assembly for ophthalmic hand piece
US20090124996A1 (en) * 2006-11-03 2009-05-14 Scott Heneveld Apparatus and methods for injecting high viscosity dermal fillers
US20090036842A1 (en) * 2007-08-03 2009-02-05 Raffi Pinedjian Consumable Activation Lever For Injection Device
EP2231258A1 (en) 2007-12-21 2010-09-29 Aesthetic Sciences Corporation Self-contained pressurized injection device
WO2009117420A1 (en) 2008-03-17 2009-09-24 Jesse Bunch Multi-mode syringe
US8372036B2 (en) * 2009-05-06 2013-02-12 Alcon Research, Ltd. Multi-layer heat assembly for a drug delivery device
US8177747B2 (en) * 2009-12-22 2012-05-15 Alcon Research, Ltd. Method and apparatus for drug delivery
US10279114B2 (en) 2014-12-08 2019-05-07 Vylon Ip Holding, Llc Syringe for and method of delivering a volume of solution with guidance bearing in view of standard and non-standard carpules
BR102015028826A2 (en) * 2015-11-17 2017-05-23 Camarço Prado Lima Alexssandra automatic applicator injection

Citations (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155090A (en) * 1962-01-10 1964-11-03 Holter Company Hypodermic syringe operating means
US3395704A (en) * 1964-11-19 1968-08-06 Frey Max Power operated syringe
US3456649A (en) * 1965-12-03 1969-07-22 Warren R Jewett Motor driven fluid administration apparatus
US3623474A (en) * 1966-07-25 1971-11-30 Medrad Inc Angiographic injection equipment
US3631847A (en) * 1966-03-04 1972-01-04 James C Hobbs Method and apparatus for injecting fluid into the vascular system
US3674009A (en) * 1970-07-13 1972-07-04 Cordis Corp Angiographic injector with pump motor starting control
US3701345A (en) * 1970-09-29 1972-10-31 Medrad Inc Angiographic injector equipment
US3720211A (en) * 1971-08-18 1973-03-13 G Kyrias Automatic injection system
US3811408A (en) * 1972-11-06 1974-05-21 A Thompson Penumatic cleaning, disinfecting and oiling device for a tube-type dental handpiece
US4024864A (en) * 1975-09-05 1977-05-24 Cordis Corporation Injector with overspeed protector
US4108177A (en) * 1976-04-23 1978-08-22 Michel Louis Paul Pistor Automatic injector device
US4191187A (en) * 1977-03-09 1980-03-04 National Research Development Corporation Medical apparatus
US4196730A (en) * 1977-08-01 1980-04-08 Wilson Dennis R Liquid drug dispenser
US4269185A (en) * 1979-01-08 1981-05-26 Whitney Douglass G Self contained mechanical injector
US4282872A (en) * 1977-12-28 1981-08-11 Siemens Aktiengesellschaft Device for the pre-programmable infusion of liquids
US4308866A (en) * 1978-11-02 1982-01-05 University Of Southern California Infusion controlling apparatus and method
US4333457A (en) * 1981-02-09 1982-06-08 Sterling Drug Inc. Self-aspirating syringe with frictionally engaged locking collet
US4381777A (en) * 1980-01-14 1983-05-03 Micro-Mega S.A. Syringe with oscillating needle
US4424720A (en) * 1980-12-15 1984-01-10 Ivac Corporation Mechanism for screw drive and syringe plunger engagement/disengagement
US4435173A (en) * 1982-03-05 1984-03-06 Delta Medical Industries Variable rate syringe pump for insulin delivery
US4529401A (en) * 1982-01-11 1985-07-16 Cardiac Pacemakers, Inc. Ambulatory infusion pump having programmable parameters
US4544369A (en) * 1983-11-22 1985-10-01 C. R. Bard, Inc. Battery operated miniature syringe infusion pump
US4551133A (en) * 1984-04-16 1985-11-05 American Hospital Supply Corporation Patient controlled medication infusion system
US4585439A (en) * 1983-09-07 1986-04-29 Disetronic Ag. Portable infusion unit
US4613328A (en) * 1984-10-22 1986-09-23 Cecil Boyd Bio-medical injector apparatus
US4617016A (en) * 1981-12-14 1986-10-14 Anders Blomberg Injection device
US4634431A (en) * 1976-11-12 1987-01-06 Whitney Douglass G Syringe injector
US4648872A (en) * 1983-11-15 1987-03-10 Kamen Dean L Volumetric pump with replaceable reservoir assembly
US4652260A (en) * 1985-03-11 1987-03-24 Strato Medical Corporation Infusion device
US4668220A (en) * 1984-10-26 1987-05-26 Infors Gmbh Infusion pump
US4719825A (en) * 1986-03-24 1988-01-19 Lahaye Peter G Metering needle assembly
US4731058A (en) * 1986-05-22 1988-03-15 Pharmacia Deltec, Inc. Drug delivery system
US4741732A (en) * 1984-05-10 1988-05-03 The University Of Melbourne Open-loop control of drug infusion
US4747824A (en) * 1986-05-30 1988-05-31 Spinello Ronald P Hypodermic anesthetic injection method
US4767406A (en) * 1985-10-11 1988-08-30 Vickers Plc. Syringe pumps
US4804368A (en) * 1986-12-05 1989-02-14 C. R. Bard, Inc. Battery operated miniature syringe infusion pump and improved halfnut therefor
US4838857A (en) * 1985-05-29 1989-06-13 Becton, Dickinson And Company Medical infusion device
US4854324A (en) * 1984-01-31 1989-08-08 Medrad, Inc. Processor-controlled angiographic injector device
US4919650A (en) * 1987-03-30 1990-04-24 Bionica Pty. Limited Infusion pump
US4931041A (en) * 1987-11-22 1990-06-05 Fresenius Ag Infusion syringe pump
US4952205A (en) * 1987-04-04 1990-08-28 B. Braun Melsungen Ag Pressure infusion device
US4959056A (en) * 1988-06-14 1990-09-25 Wayne State University Digital dispenser
US5006112A (en) * 1988-11-12 1991-04-09 Mts Schweinfurt Gmbh Syringe pump
US5021046A (en) * 1988-08-10 1991-06-04 Utah Medical Products, Inc. Medical pressure sensing and display system
US5100380A (en) * 1984-02-08 1992-03-31 Abbott Laboratories Remotely programmable infusion system
US5101679A (en) * 1990-01-08 1992-04-07 Ivac Corporation Screw drive engagement/disengagement and decoupling mechanism
US5106375A (en) * 1991-05-23 1992-04-21 Ivac Corporation Dynamic lead screw engagement and indicator
US5139484A (en) * 1988-01-07 1992-08-18 Bernard Hazon Ambulatory syringe-pusher device for parenteral injections with output servo-controlled by the contents of the syringe
US5180371A (en) * 1986-05-30 1993-01-19 Spintech, Inc. Hypodermic anesthetic injection apparatus and method
US5181910A (en) * 1991-02-28 1993-01-26 Pharmacia Deltec, Inc. Method and apparatus for a fluid infusion system with linearized flow rate change
US5207645A (en) * 1991-06-25 1993-05-04 Medication Delivery Devices Infusion pump, treatment fluid bag therefor, and method for the use thereof
US5219099A (en) * 1991-09-06 1993-06-15 California Institute Of Technology Coaxial lead screw drive syringe pump
US5236416A (en) * 1991-05-23 1993-08-17 Ivac Corporation Syringe plunger position detection and alarm generation
US5242408A (en) * 1992-09-23 1993-09-07 Becton, Dickinson And Company Method and apparatus for determining pressure and detecting occlusions in a syringe pump
US5244461A (en) * 1989-03-10 1993-09-14 Graseby Medical Limited Infusion pump with occlusion sensitive shutoff
US5244463A (en) * 1991-12-06 1993-09-14 Block Medical, Inc. Programmable infusion pump
US5254096A (en) * 1992-09-23 1993-10-19 Becton, Dickinson And Company Syringe pump with graphical display or error conditions
US5256157A (en) * 1991-01-31 1993-10-26 Baxter International Inc. Automated infusion pump with replaceable memory cartridges
US5295967A (en) * 1992-09-23 1994-03-22 Becton, Dickinson And Company Syringe pump having continuous pressure monitoring and display
US5300029A (en) * 1992-07-01 1994-04-05 Raymond Denance Electromechanical injection apparatus for medical and veterinary use actuated by a trigger
US5318521A (en) * 1992-05-12 1994-06-07 Siemens Aktiengesellschaft Dosing device for the controlled delivery of a liquid
US5322511A (en) * 1992-04-21 1994-06-21 Sterling Winthrop Inc. Portable hand-held power injector
US5354273A (en) * 1992-12-14 1994-10-11 Mallinckrodt Medical, Inc. Delivery apparatus with pressure controlled delivery
US5378231A (en) * 1992-11-25 1995-01-03 Abbott Laboratories Automated drug infusion system
US5389071A (en) * 1992-04-03 1995-02-14 Sharp Kabushiki Kaisha Infusion method having a plurality of delivery patterns
US5395340A (en) * 1993-03-15 1995-03-07 Lee; Tzium-Shou Infusion pump and a method for infusing patients using same
US5395321A (en) * 1992-04-03 1995-03-07 Sharp Kabushiki Kaisha Infusion apparatus capable of storing a plurality of accumulated infusion fluid volumes of the past
US5415528A (en) * 1992-12-18 1995-05-16 Abbott Laboratories Solution pumping for maximizing output while minimizing uneven pumping pressures
US5423746A (en) * 1991-08-05 1995-06-13 Imed Corporation Method and apparatus for infiltration detection during administration of intravenous fluids
US5425716A (en) * 1991-08-09 1995-06-20 Atom Kabushiki Kaisha Infusion apparatus
US5501670A (en) * 1995-03-31 1996-03-26 Sak; Robert F. Syringe system providing retraction of needle cannula into disposable cartridge
US5505709A (en) * 1994-09-15 1996-04-09 Minimed, Inc., A Delaware Corporation Mated infusion pump and syringe
US5507412A (en) * 1993-06-19 1996-04-16 Dragerwerk Ag Centralized multichannel fluid delivery system
US5533981A (en) * 1994-10-06 1996-07-09 Baxter International Inc. Syringe infusion pump having a syringe plunger sensor
US5535746A (en) * 1994-03-29 1996-07-16 Sterling Winthrop Inc. Prefilled syringe for use with power injector
US5545140A (en) * 1991-05-23 1996-08-13 Ivac Corporation Syringe plunger driver
US5558639A (en) * 1993-06-10 1996-09-24 Gangemi; Ronald J. Ambulatory patient infusion apparatus
US5593390A (en) * 1994-03-09 1997-01-14 Visionary Medical Products, Inc. Medication delivery device with a microprocessor and characteristic monitor
US5611784A (en) * 1993-06-30 1997-03-18 Hamilton Company Manual dispensing aid for a syringe
US5672155A (en) * 1996-06-14 1997-09-30 Riley; Robert Q. Fluid transfer apparatus
US5681286A (en) * 1993-11-24 1997-10-28 Liebel Flarsheim Company Controlling plunger drives for fluid injections in animals
US5681285A (en) * 1992-10-15 1997-10-28 Baxter International Inc. Infusion pump with an electronically loadable drug library and a user interface for loading the library
US5795328A (en) * 1994-10-28 1998-08-18 Iolab Corporation Vacuum system and a method of operating a vacuum system
US5807334A (en) * 1995-10-20 1998-09-15 Hodosh; Milton Fluid dispensing apparatus
US5814015A (en) * 1995-02-24 1998-09-29 Harvard Clinical Technology, Inc. Infusion pump for at least one syringe
US5823993A (en) * 1994-02-18 1998-10-20 Lemelson; Jerome H. Computer controlled drug injection system and method
US5891106A (en) * 1994-12-09 1999-04-06 Medinfodent Ltd. Syringe
US5925018A (en) * 1994-11-14 1999-07-20 Cma/Microdialysis Ab Infusion and microdialysis pump
US5927976A (en) * 1996-05-10 1999-07-27 Cyberdent, Inc. Medication injection device and method
US5935099A (en) * 1992-09-09 1999-08-10 Sims Deltec, Inc. Drug pump systems and methods
US5938636A (en) * 1997-06-20 1999-08-17 The Bd Of Regents Of The University Of California Autoinfuser for resuscitation and method of infusion fluid injection
US5954697A (en) * 1998-03-02 1999-09-21 Srisathapat; Chad Threaded nut syringe plunger for use with a medication infusion pump

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415419A (en) * 1966-10-27 1968-12-10 Jewett Fluid administering system
DE3012591C2 (en) * 1980-04-01 1984-12-20 Kraftanlagen Ag, 6900 Heidelberg, De
US4627835A (en) * 1985-03-11 1986-12-09 Strato Medical Corporation Tubing assembly for infusion device
FR2581548B1 (en) * 1985-05-09 1990-07-20 Villette Alain An intraosseous injection of biocompatible products
FR2594341B1 (en) * 1986-02-14 1990-08-10 Charton Jean Pierre Unit injector for the practice of mesotherapy
US4978335A (en) * 1989-09-29 1990-12-18 Medex, Inc. Infusion pump with bar code input to computer
US5360410A (en) * 1991-01-16 1994-11-01 Senetek Plc Safety syringe for mixing two-component medicaments
JP3236057B2 (en) * 1992-04-03 2001-12-04 シャープ株式会社 Infusion device
US5269762A (en) * 1992-04-21 1993-12-14 Sterling Winthrop, Inc. Portable hand-held power assister device
US5261884A (en) * 1992-04-29 1993-11-16 Becton, Dickinson And Company Syringe pump control system
IL107038A (en) * 1992-10-05 1997-04-15 Senetek Plc Medicament injectors and methods for injection using same
JP2530150Y2 (en) * 1993-01-06 1997-03-26 城田電気炉材株式会社 The injection device of the anesthetic or the like for dental
US5690618A (en) * 1995-02-22 1997-11-25 Mark Timothy Smith Electronic syringe

Patent Citations (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3155090A (en) * 1962-01-10 1964-11-03 Holter Company Hypodermic syringe operating means
US3395704A (en) * 1964-11-19 1968-08-06 Frey Max Power operated syringe
US3456649A (en) * 1965-12-03 1969-07-22 Warren R Jewett Motor driven fluid administration apparatus
US3631847A (en) * 1966-03-04 1972-01-04 James C Hobbs Method and apparatus for injecting fluid into the vascular system
US3623474A (en) * 1966-07-25 1971-11-30 Medrad Inc Angiographic injection equipment
US3674009A (en) * 1970-07-13 1972-07-04 Cordis Corp Angiographic injector with pump motor starting control
US3701345A (en) * 1970-09-29 1972-10-31 Medrad Inc Angiographic injector equipment
US3720211A (en) * 1971-08-18 1973-03-13 G Kyrias Automatic injection system
US3811408A (en) * 1972-11-06 1974-05-21 A Thompson Penumatic cleaning, disinfecting and oiling device for a tube-type dental handpiece
US4024864A (en) * 1975-09-05 1977-05-24 Cordis Corporation Injector with overspeed protector
US4108177A (en) * 1976-04-23 1978-08-22 Michel Louis Paul Pistor Automatic injector device
US4273122A (en) * 1976-11-12 1981-06-16 Whitney Douglass G Self contained powered injection system
US4634431A (en) * 1976-11-12 1987-01-06 Whitney Douglass G Syringe injector
US4191187A (en) * 1977-03-09 1980-03-04 National Research Development Corporation Medical apparatus
US4196730A (en) * 1977-08-01 1980-04-08 Wilson Dennis R Liquid drug dispenser
US4282872A (en) * 1977-12-28 1981-08-11 Siemens Aktiengesellschaft Device for the pre-programmable infusion of liquids
US4308866A (en) * 1978-11-02 1982-01-05 University Of Southern California Infusion controlling apparatus and method
US4269185A (en) * 1979-01-08 1981-05-26 Whitney Douglass G Self contained mechanical injector
US4342311A (en) * 1979-01-08 1982-08-03 Whitney Douglass G Injector with programming means
US4346707A (en) * 1979-01-08 1982-08-31 Whitney Douglass G Piston drive arrangement for injector
US4326517A (en) * 1979-01-08 1982-04-27 Whitney Douglass G Self contained injection system
US4381777A (en) * 1980-01-14 1983-05-03 Micro-Mega S.A. Syringe with oscillating needle
US4424720A (en) * 1980-12-15 1984-01-10 Ivac Corporation Mechanism for screw drive and syringe plunger engagement/disengagement
US4333457A (en) * 1981-02-09 1982-06-08 Sterling Drug Inc. Self-aspirating syringe with frictionally engaged locking collet
US4617016A (en) * 1981-12-14 1986-10-14 Anders Blomberg Injection device
US4529401A (en) * 1982-01-11 1985-07-16 Cardiac Pacemakers, Inc. Ambulatory infusion pump having programmable parameters
US4435173A (en) * 1982-03-05 1984-03-06 Delta Medical Industries Variable rate syringe pump for insulin delivery
US4585439A (en) * 1983-09-07 1986-04-29 Disetronic Ag. Portable infusion unit
US4648872A (en) * 1983-11-15 1987-03-10 Kamen Dean L Volumetric pump with replaceable reservoir assembly
US4544369A (en) * 1983-11-22 1985-10-01 C. R. Bard, Inc. Battery operated miniature syringe infusion pump
US4854324A (en) * 1984-01-31 1989-08-08 Medrad, Inc. Processor-controlled angiographic injector device
US5100380A (en) * 1984-02-08 1992-03-31 Abbott Laboratories Remotely programmable infusion system
US4551133A (en) * 1984-04-16 1985-11-05 American Hospital Supply Corporation Patient controlled medication infusion system
US4741732A (en) * 1984-05-10 1988-05-03 The University Of Melbourne Open-loop control of drug infusion
US4613328A (en) * 1984-10-22 1986-09-23 Cecil Boyd Bio-medical injector apparatus
US4668220A (en) * 1984-10-26 1987-05-26 Infors Gmbh Infusion pump
US4652260A (en) * 1985-03-11 1987-03-24 Strato Medical Corporation Infusion device
US4838857A (en) * 1985-05-29 1989-06-13 Becton, Dickinson And Company Medical infusion device
US4767406A (en) * 1985-10-11 1988-08-30 Vickers Plc. Syringe pumps
US4719825A (en) * 1986-03-24 1988-01-19 Lahaye Peter G Metering needle assembly
US4731058A (en) * 1986-05-22 1988-03-15 Pharmacia Deltec, Inc. Drug delivery system
US5180371A (en) * 1986-05-30 1993-01-19 Spintech, Inc. Hypodermic anesthetic injection apparatus and method
US4747824A (en) * 1986-05-30 1988-05-31 Spinello Ronald P Hypodermic anesthetic injection method
US4804368A (en) * 1986-12-05 1989-02-14 C. R. Bard, Inc. Battery operated miniature syringe infusion pump and improved halfnut therefor
US4919650A (en) * 1987-03-30 1990-04-24 Bionica Pty. Limited Infusion pump
US4952205A (en) * 1987-04-04 1990-08-28 B. Braun Melsungen Ag Pressure infusion device
US4931041A (en) * 1987-11-22 1990-06-05 Fresenius Ag Infusion syringe pump
US5139484A (en) * 1988-01-07 1992-08-18 Bernard Hazon Ambulatory syringe-pusher device for parenteral injections with output servo-controlled by the contents of the syringe
US4959056A (en) * 1988-06-14 1990-09-25 Wayne State University Digital dispenser
US5021046A (en) * 1988-08-10 1991-06-04 Utah Medical Products, Inc. Medical pressure sensing and display system
US5006112A (en) * 1988-11-12 1991-04-09 Mts Schweinfurt Gmbh Syringe pump
US5244461A (en) * 1989-03-10 1993-09-14 Graseby Medical Limited Infusion pump with occlusion sensitive shutoff
US5101679A (en) * 1990-01-08 1992-04-07 Ivac Corporation Screw drive engagement/disengagement and decoupling mechanism
US5256157A (en) * 1991-01-31 1993-10-26 Baxter International Inc. Automated infusion pump with replaceable memory cartridges
US5181910A (en) * 1991-02-28 1993-01-26 Pharmacia Deltec, Inc. Method and apparatus for a fluid infusion system with linearized flow rate change
US5106375A (en) * 1991-05-23 1992-04-21 Ivac Corporation Dynamic lead screw engagement and indicator
US5236416A (en) * 1991-05-23 1993-08-17 Ivac Corporation Syringe plunger position detection and alarm generation
US5545140A (en) * 1991-05-23 1996-08-13 Ivac Corporation Syringe plunger driver
US5207645A (en) * 1991-06-25 1993-05-04 Medication Delivery Devices Infusion pump, treatment fluid bag therefor, and method for the use thereof
US5433704A (en) * 1991-06-25 1995-07-18 Medication Delivery Devices Infusion pump, treatment fluid bag therefor, and method for the use thereof
US5423746A (en) * 1991-08-05 1995-06-13 Imed Corporation Method and apparatus for infiltration detection during administration of intravenous fluids
US5425716A (en) * 1991-08-09 1995-06-20 Atom Kabushiki Kaisha Infusion apparatus
US5219099A (en) * 1991-09-06 1993-06-15 California Institute Of Technology Coaxial lead screw drive syringe pump
US5244463A (en) * 1991-12-06 1993-09-14 Block Medical, Inc. Programmable infusion pump
US5389071A (en) * 1992-04-03 1995-02-14 Sharp Kabushiki Kaisha Infusion method having a plurality of delivery patterns
US5395321A (en) * 1992-04-03 1995-03-07 Sharp Kabushiki Kaisha Infusion apparatus capable of storing a plurality of accumulated infusion fluid volumes of the past
US5322511A (en) * 1992-04-21 1994-06-21 Sterling Winthrop Inc. Portable hand-held power injector
US5318521A (en) * 1992-05-12 1994-06-07 Siemens Aktiengesellschaft Dosing device for the controlled delivery of a liquid
US5300029A (en) * 1992-07-01 1994-04-05 Raymond Denance Electromechanical injection apparatus for medical and veterinary use actuated by a trigger
US5935099A (en) * 1992-09-09 1999-08-10 Sims Deltec, Inc. Drug pump systems and methods
US5295967A (en) * 1992-09-23 1994-03-22 Becton, Dickinson And Company Syringe pump having continuous pressure monitoring and display
US5242408A (en) * 1992-09-23 1993-09-07 Becton, Dickinson And Company Method and apparatus for determining pressure and detecting occlusions in a syringe pump
US5254096A (en) * 1992-09-23 1993-10-19 Becton, Dickinson And Company Syringe pump with graphical display or error conditions
US5681285A (en) * 1992-10-15 1997-10-28 Baxter International Inc. Infusion pump with an electronically loadable drug library and a user interface for loading the library
US5378231A (en) * 1992-11-25 1995-01-03 Abbott Laboratories Automated drug infusion system
US5354273A (en) * 1992-12-14 1994-10-11 Mallinckrodt Medical, Inc. Delivery apparatus with pressure controlled delivery
US5415528A (en) * 1992-12-18 1995-05-16 Abbott Laboratories Solution pumping for maximizing output while minimizing uneven pumping pressures
US5395340A (en) * 1993-03-15 1995-03-07 Lee; Tzium-Shou Infusion pump and a method for infusing patients using same
US5558639A (en) * 1993-06-10 1996-09-24 Gangemi; Ronald J. Ambulatory patient infusion apparatus
US5507412A (en) * 1993-06-19 1996-04-16 Dragerwerk Ag Centralized multichannel fluid delivery system
US5611784A (en) * 1993-06-30 1997-03-18 Hamilton Company Manual dispensing aid for a syringe
US5681286A (en) * 1993-11-24 1997-10-28 Liebel Flarsheim Company Controlling plunger drives for fluid injections in animals
US5928197A (en) * 1993-11-24 1999-07-27 Liebel-Flarsheim Company Controlling plunger drives for fluid injections in animals
US5823993A (en) * 1994-02-18 1998-10-20 Lemelson; Jerome H. Computer controlled drug injection system and method
US5728074A (en) * 1994-03-09 1998-03-17 Visionary Medical Products, Inc. Pen-type injector with a microprocessor and blood characteristic monitor
US5593390A (en) * 1994-03-09 1997-01-14 Visionary Medical Products, Inc. Medication delivery device with a microprocessor and characteristic monitor
US5535746A (en) * 1994-03-29 1996-07-16 Sterling Winthrop Inc. Prefilled syringe for use with power injector
US5505709A (en) * 1994-09-15 1996-04-09 Minimed, Inc., A Delaware Corporation Mated infusion pump and syringe
US5533981A (en) * 1994-10-06 1996-07-09 Baxter International Inc. Syringe infusion pump having a syringe plunger sensor
US5795328A (en) * 1994-10-28 1998-08-18 Iolab Corporation Vacuum system and a method of operating a vacuum system
US5925018A (en) * 1994-11-14 1999-07-20 Cma/Microdialysis Ab Infusion and microdialysis pump
US5891106A (en) * 1994-12-09 1999-04-06 Medinfodent Ltd. Syringe
US5814015A (en) * 1995-02-24 1998-09-29 Harvard Clinical Technology, Inc. Infusion pump for at least one syringe
US5501670A (en) * 1995-03-31 1996-03-26 Sak; Robert F. Syringe system providing retraction of needle cannula into disposable cartridge
US5807334A (en) * 1995-10-20 1998-09-15 Hodosh; Milton Fluid dispensing apparatus
US5927976A (en) * 1996-05-10 1999-07-27 Cyberdent, Inc. Medication injection device and method
US5672155A (en) * 1996-06-14 1997-09-30 Riley; Robert Q. Fluid transfer apparatus
US5938636A (en) * 1997-06-20 1999-08-17 The Bd Of Regents Of The University Of California Autoinfuser for resuscitation and method of infusion fluid injection
US5954697A (en) * 1998-03-02 1999-09-21 Srisathapat; Chad Threaded nut syringe plunger for use with a medication infusion pump

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080021409A1 (en) * 2003-03-25 2008-01-24 Sedat Device for protection of the needle for a syringe and injection device comprising a syringe and said protection device
US8845595B2 (en) 2003-03-25 2014-09-30 Tech Group Europe Limited Device for protection of the needle for a syringe and injection device comprising a syringe and said protection device
US20070179441A1 (en) * 2003-10-22 2007-08-02 Stephane Chevallier Protected injection syringe device
US9314575B2 (en) 2003-10-22 2016-04-19 Tech Group Europe Limited Protected injection syringe device
US7097636B2 (en) * 2003-11-24 2006-08-29 Sedat Needle protection device intended for a carpule and injection device comprising a carpule and this protection device
US20050119623A1 (en) * 2003-11-24 2005-06-02 Olivier Pessin Needle protection device intended for a carpule and injection device comprising a carpule and this protection device
US20080097325A1 (en) * 2005-02-24 2008-04-24 Showa Yakuhin Kako Co., Ltd. Method and apparatus for controlling the injection rate of a drug solution in a cartridge type motor-driven dental injection syringe
US20160128760A1 (en) * 2005-09-27 2016-05-12 Allegiance Corporation Medical suction and irrigation device handpiece
US9259519B2 (en) * 2005-09-27 2016-02-16 Allegiance Corporation Medical suction and irrigation device handpiece
US20070173760A1 (en) * 2005-09-27 2007-07-26 Fedenia Adam S Medical suction and irrigation device handpiece
US9907602B2 (en) * 2005-09-27 2018-03-06 Allegiance Corporation Medical suction and irrigation device handpiece
WO2007136794A3 (en) * 2006-05-19 2008-01-24 Mpsc Inc Piercing tip
WO2007136794A2 (en) * 2006-05-19 2007-11-29 Mpsc, Inc. Piercing tip
US20080045925A1 (en) * 2006-06-19 2008-02-21 Stepovich Matthew J Drug delivery system
US20080086108A1 (en) * 2006-10-05 2008-04-10 Falkel Michael I Method and apparatus for delivering a drug
US7817498B1 (en) * 2007-05-11 2010-10-19 Michael R. Schramm Medical apparatus having elapsed time indicated and method of use
US20100217205A1 (en) * 2007-10-23 2010-08-26 Tech Group Europe Ltd. Syringe device comprising a syringe body and a bearing sleeve
US9220848B2 (en) 2007-10-23 2015-12-29 Tech Group Europe Limited Syringe device comprising a syringe body and a bearing sleeve
KR101079155B1 (en) 2009-02-24 2011-11-02 김명섭 Automatic Fine Needle Cell Aspirator
US9022990B2 (en) 2011-04-04 2015-05-05 Tech Group Europe Limited Needle safety shield
US9050416B2 (en) 2012-11-01 2015-06-09 Tech Group Europe Limited Needle Safety device with floating ring

Also Published As

Publication number Publication date
WO2001087383A9 (en) 2003-01-16
JP2003533287A (en) 2003-11-11
CA2409711A1 (en) 2001-11-22
US20020055720A1 (en) 2002-05-09
US20050101913A1 (en) 2005-05-12
BR0110933B1 (en) 2009-08-11
WO2001087383A2 (en) 2001-11-22
BR0110933A (en) 2003-02-11
WO2001087383A3 (en) 2002-03-14
MXPA02011395A (en) 2003-04-25
AU6179001A (en) 2001-11-26
AU2001261790B2 (en) 2007-01-04

Similar Documents

Publication Publication Date Title
CN1255192C (en) Medical arrangement
EP0551421B1 (en) Safety syringe with retractable needle
US4599082A (en) Two-component syringe assembly
US4592742A (en) Pressure hypodermic syringe
US4834717A (en) Disposable, pre-sterilizable syringe for a pre-filled medication cartridge
JP4660190B2 (en) Drug delivery system
US4475905A (en) Injection device
CN1213776C (en) Injection unit for delivering treating agent to patient
US5562613A (en) Subcutaneous drug delivery device
US8298194B2 (en) Injection device and a method of changing a cartridge in the device
EP0954344B1 (en) Plunger and a fluid chamber for nozzle assembly
US5217442A (en) Aspiration and refill kit for a medication infusion pump
US8920374B2 (en) Drive control mechanisms and automatic injectors for injectable cartridges
EP1542744B1 (en) Injecting device
US6482186B1 (en) Reusable medication delivery device
US7833196B2 (en) Illumination instrument for an infusion pump
US4597753A (en) Implanting method and device
US3727614A (en) Multiple dosage inoculator
US6652482B2 (en) Dental anesthetic and delivery injection unit with automated rate control
CN1200741C (en) Pressure drug delivery system controlled by computer
US8257318B2 (en) Injection device having a rotatable scale drum
EP0941133B1 (en) Disposable, pre-filled drug cartridge
EP2067496B1 (en) Medical injector
US7771400B2 (en) Injection device
EP0702970A2 (en) Medication delivery pen with variable increment dose scale

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION